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The Self-Defense Institute

1721 Main StreetTewksbury , MA 01876
Phone: 978-863-1460Email: tsdi.contact@gmail.comWebsite: Visit Website Google Map

Since 1999, The Self-Defense Institute in Tewksbury, MA, has empowered individuals of all ages, from 3 1/2 to 18 years and adults, with the skills and resources to excel in the Martial Arts and beyond.

The Self-Defense Institute is an accredited, professional and family-owned center for beginner, intermediate and expert martial arts training.  The professional, extremely experienced, and humble instructors are very skilled and patient at instructing all ages.

Martial Art Programs offered by The Self-Defense Institute provide a fun and engaging activity for the entire family, bringing everyone closer together and creating unforgettable memories.

Martial Arts Programs for Children, as well as the Martial Arts Programs for Adults, are designed to promote values and principles that will positively impact the lives of all students.


Chief instructors are certified masters, who have been instructing 'Self-Defense with Practical Results' for over 30 years locally and at corporate locations.

The Self-Defense Institute is a member of World Martial Arts Federation, Greater Lowell Chamber of Commerce, and Wilmington/Tewksbury Chamber of Commerce; and continue, since 1999, to be recognized by local, regional, and national associations.

Executive Directors of TSDI Enrichment Programs, Inc., 501(c)3 Non-Profit Public Charity.  Investing in the future! Empowering the next generation. College scholarships are awarded to High School Seniors.

The Self-Defense Institute and Chief Instructors have been recognized out of hundreds of centers in the Northeast by the Bruce Lee Foundation and Shannon Lee (Bruce Lee's daughter) for their dedication and commitment; exemplary teaching; leadership in the community; and a commitment to "Excellence" standards.

The Self-Defense Institute has grown to stay true to its mission of empowering individuals with the skills and resources they need. From humble beginnings to humble present, The Self-Defense Institute's commitment to excellence and community service has not gone unnoticed. It is with great pride and gratitude that The Self-Defense Institute received recognition from the esteemed Massachusetts State Senate. This recognition serves as a testament to the hard work and dedication of everyone involved with The Self-Defense Institute. It is a reminder that all initiatives, when fueled by passion and purpose, can make a significant difference in the lives of others.  

Through lessons in discipline, respect, camaraderie, and community support, martial arts equip children with tools to enhance self-esteem and thrive.

Martial arts help kids discover their inner strength. By encouraging participation in martial arts, we invest in not just their physical health but in empowering them to believe in themselves, face the world with resilience, and assert their confidence. So, let’s encourage our kids to take their first steps on this exciting journey!

Family, School, and Corporate Rates are available.  

Connect:  Email tsdi.contact@gmail.com.

Introductory Lesson is $15.

Monthly Tuition / NoContracts / NoAgreements.   College Scholarships are awarded.


The Self-Defense Institute
1721 Main St.
Tewksbury MA 01876

978-863-1460

Website: https://www.tsdionline.com/

Email: tsdi.contact@gmail.com

Facebook: https://www.facebook.com/people/The-Self-Defense-Institute/61564685116223/

YouTube: https://www.youtube.com/@TheSelfDefenseInstituteTewksbu/podcasts



Business Review

“Learning about the martial arts has become a wonderful chapter in my life. It has enriched my life, and has given me an opportunity to gain more self-confidence in my abilities to achieve and deal with the daily social challenges that exist today. The various workouts that I attend and techniques shown to me by the instructors at The Self-Defense Institute, whose knowledge demonstrate years of hard work and conditioning, are very valuable to me at this time in my life. Self-confidence has taken on a new meaning that continues to grow within me as I continue to train. Clearly, my choice to train in the style of Kempo Karate, Ju-jitsu, and Kung Fu has been the right choice for me.” 
—male, age 35

“Life seems to be more balanced and my family is more meaningful to me today than in the past. The martial arts is changing me in a positive way by broadening my mind, improving my physical condition, and opening my eyes to an art that is adding value to my life."
— male, age 19, college student

“In addition to improved physical conditioning, balance, flexibility, strength, and coordination, I think the changes in my life due to my martial arts training include: a positive attitude, patience, perseverance, and self-confidence, with a great deal of respect for myself and others.”
—male, age 17, high school student

"We thoroughly enjoyed these past few weeks and learned a lot from you.  I can’t thank you enough for teaching us the skills and techniques but also instilling a sense of self and awareness. I look forward to contacting you again once we have her schedule so we can sign up again. "
—Female, Parent of College-Bound Daughter (Self-Defense Session)

"My instructors have helped me a lot. I no longer look at myself as weak, but as a person who cares about everyone.  As I get stronger muscles, my mind is getting clearer.  I have learned to respect my teachers and my family, not because I look stronger, but I feel stronger with my thoughts.  My instructors taught us that "If you say you can, then you will!"  Classes are fun and I've learned a lot on how to communicate with others, and that respect and honesty are very important parts of life."  - age 12